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I I(No Modem 2 sheets-sheet 1.

H. WOODMANSE & S. LEBKICHBR.

WINDMILL;

No. 327.508. Patented Sept. 29, 1885` I mm N J lllllllllllmm t e 1 Eg eiii@ l t di INVENTOR f7 4f/N. auw,

ATTORNEY (No Model.) 2 Sheets-Sheet 2. H. WOODMANSE 8v S. LEBKICHER.

WINDMILL.

No. 327,508. Patented Sept. 29, 1885.

III

. Y INVENTOR WITNBSSES JM MQ/M.

ATTORNEY Unire STATES PATENT' OFFICE.

HARRISON W'OODMANSE AND SAMUEL LEBKICHER, OF FREEPORT, ILLINOIS; SAIDLEBKICHER ASSIGNOR TO SAID VOODMANSE.

WINDIVIILL.

SPECIFICATION forming part of Letters Patent No. 327,508, datedSeptember 29, 1885.

Application filed April 7, 1384. (No model.)

To @ZZ whom it may concern,.-

Be it known that we, HARRISON W'ooD- uANsE and SAMUEL LEBKICHER,residents of Freeport, in the county of Stephenson and State ofIllinois, have invented certain new and useful Improvements inlVindmills; and we do hereby declare the following to be a full, clear,and eXact description of the invention, such as will enable othersskilled in the art to Which it pertains to make and use the same.

Our invention relates to improvements in windmills, and more especiallyto improvements in the means for governing the wind- `wheel, and in thefittings and connections of .i 5 the pitman used in pumping.

The construction of the windmill is fully explained and described in thefollowing specification and shown in the accompanying drawings, and theimprovements referred to are 2o set out in the claims forming part ofthe specifieation.

In the accompanying drawings .above nientioned, Figure l is a sideelevation of the working parts of the mill, looking in thedirectionindicated by the arrow as, Fig. 2, the pitman .I being brokenin two, and the lower part thereof being turned ninety degrees from theposition of the upper part, in order to show more fully the details ofthe connectingf-,o rod U. Fig. 2 is a plan of the working parts of themill, Fig. 3, an elevation of the regulating-lever and the means ofoperating the same, looking in the direction indicated by the arrow x,Fig. 1, the tower and turn-table being cut by a vertical plane passingthrough the line a b, Fig. 2, and the half opposite the regulating-leverremoved; and Fig. L1, a horizonal section of the connecting-rod U andwasher b through the line m a, Fig. l.

4o In these views, A is the tower of the mill, B C the top platethereof, and l) the turn-table, which rests on a series of anti-frictionballs interposed between it` and the plateB C. Vit-h the turn-table isformed integrally the bearing G, in which is journaled the wind-wheelshaft II; and a frame, E, provided with ears K K on the side oppositethe bearing G, is also formed integrally with the turn-table. In theears K K is journaled the vertical pivot 5o L, which supports thehorizontal mid-rib M of a regulating-vane, of any desired form, the

rib swinging freely about the pivot as an axis of oscillation. The pivotL is provided with two lugs, t' i', which form the limits of motion ofthe vane, since one of them, z', strikes the 55 frame E when the mill isin the wind,7 while the other, i, strikes the frame when the mill is outof the wind. The vane is hinged slightly olf the center', as is commonin mills of this class, and is so arranged with 6o reference to thewind-wheel that the latter, in going out of the wind, swings about thevertical axis of the mill in the direction indicated by the arrow y,Fig. 2.

A horizontal plate, F, is formed integrally with the turn-table D on theside opposite the bearing of the wind-wheel, and to the upper face oftheplate is fastened,by means of bolts K, a casting, O, provided with twoparallel vertical ears, o o,which are practically at right angles to thevane M when the mill is in the wind. In the cars o 0 is journaled ahori- Zontal shaft, j, which extends outward from the ear o, forming asquare arm, Q. The outer end of the arm Q is reduced in thickness, andthe reduced portion passes through a slot, h, in a preferably circularplate orpulley, I. One of the side faces of the pulley rests against ashoulder at the inner end of the reduced part of the arm Q, and a nut,f, 8o screwed on the outer end of the arm Q, rests against the oth erface of the pulley and secures itin place. Theloosening ofthenutfloosens the pulley, and it may be moved on the arm Q so as to changethe position of the arm in the slot 7L, and thus vary the eccentricityof the pulley. A chain, S, is fastened at one end to the vane, while theother end passes overand partly around thepulley and is fastenedthereto. Between the ears oo hangs a casting, g, 9o which is rigidlyfastened to the shaftj,and to the casting g is bolted a lever, N,provided with an adjustable weight, B.

When the wind-wheel is in the wind, as shownin Fig. 2, thelever N hangsnearly vertical,or in the position shown in Fig. 3; but as thewind-Wheel swings out of the wind in the direction indicated by thearrow y, Fig. 2, the lever N, shaft Q, and pulley R swing with it in thedirection indicated by the arrow y', the roo distance between the pulleyand the vane increases, and the pulley is rotated in the directionindicated by the arrow i, Fig. 3, thus raising the free ,end of thelever N and the weight l?, which is fastened thereon. The weighted leverthus resists any tendency of the wind-wheel to go out of the wind, andits resistance increases as it approaches a horizontal position, andisleast when it is nearest vertical; At the same time the rotation of thepulley lt Varies the leverage of the chain on the arm Q and shaft j, theleverage being greatest when the lever N is vertical and least when itis at its highest. point. This variation in leverage may be increased ordiminished at will by varying the eccentricity of the pulley. lf thepulley be formed as shown, theleverage decreases as the wheel goes outof the wind, and the increasing resistance of the weighted lever is thusmultiplied by the rotation of the pulley; in other words, the use oftheeccentric pulley renders the wheel easier to start out of the wind, butconstantly increases the resistance of the weighted lever as the wheelswingstoward the vane.

It is evident that the pulley R need not necessarily be in the form ofacircle or asegment of a circle,but may be a cam of such form as to varythe leverage in any desired way; but the form shown is probably as goodas any. Since only a part of the circumference of the pulley is used,the remainder may be out away, if desired, and the operation of thedevice will still be the same.

W'e are aware that the combination, with the turn-table and vane of awindmill, of a weighted lever hung on a shaft journaled in theturn-table is not new, and thatitisacommon expedient to attach acrank-arm to said lever-supporting shaft and connect said crankarm withthe vane by means of a chain, rope, or band.

We are also aware that a non-adj ustable centrally-mounted sector hasbeen attached to said shaft in place of the crank-arm, and connected bya suitable cord with the vane. Vhen the crank-arm is used, the leveragebrought to bear on the shaft varies in a ratio which cannot be Ychanged, and when the centrallyunountedseced acrank-plate, I, providedwith a suitable crank-pin, which passes through the upper end of thepitman J, the lower end of the pitman being connected with a connectingrod, U, Figi. The connecting-rod (which is channeled for the passage ofa chain or wire for drawing the mill out ofthe wind from below) slidesreciprocally in a bushing, Z, inserted in the lower end of the cone T,which is formed integrally with the turn-table D. The upper end of thebushing is flanged outwardly, and the lower end is provided with a nut,c, which lies below the end of the casting T and holds Vthe bushing inplace. By taking out the connecting-rod U and taking off the nut a, thebushing Z may be readily removed when worn and replaced by a new one.

At the lower end of the connecting-rod U is a nut, a', screwed on therod, and immediately above the nut the rod is slightly flattened andconforms to the inner surface of a washer, b, Figs. l and 4, whichsurrounds the rod and rests on the nut. The washer sustains nthe weightofthe swivel u a and pump-rod d, the swivel-ring c being formed bybolting together the two semi-annular halves of the swivel. Above the.swivel is a ring, b, surrounding the rod U and fastened thereon by aset-screw. The swivel can thus turn on the connectingrod, but has nolongitudinal play thereon, and the washer b prevents the rotation of theswivel from affecting the nut a.

It has been customary heretofore to form the connecting-rod U with aiiange at thelower end, and pass it upward from below through theopening in the lower end of the cone T. In order to secure greaterstrength, however, the joint u between the pitman J and connecting-rod Uhas been enlarged until its diameter is greater than that of the openingin the bottom of the cone, and it is therefore necessary to make thelower end of the connecting-rod as small as the body thereof', and passit downward from abovev through the bottom of the cone. Having donethis,some retaining device-must bottom of the connecting-rod, and thenut a and washer b are believed to constitute as simple and effective adevice as can be used,since theyarereadily detachable, andatthesametimeare not liable to accidental loosening or sepa ration from the rod towhich they are attached.

Having now described our invention and explained its operation, what weclaim asnew, and desire to secure by Letters Patent, is-

IOO

' necessarily'be substituted for the flange at the l. The combination'ofthe turn-table of a windmill of the class described, a suitablyjournaledhorizontal shaft mounted on said turn-table, a weighted lever rigidlyattached to said ]'ournaled shaft and oscillating in a vertical planeupon the reciprocal rotation of said shaft in its bearings, a kpulleyadjustably mounted on said lever-supporting shaft, and a band or chain,one end fof which is attached to the regulating-vane of the mill,whilethe other passes partly around and is fastened to said pulley,wherebythe changing of the angle between the vane and the wind-wheelporting sha-ft, and a chain or, band,one end of which is attached to theregulating-vane of the mill, while the other end thereof passes partlyaround and is fastened to said eccentrie pulley, whereby the changing ofthe angle ot' said vane to the wind-wheel rotates said eccentric pulley,and thereby exerts a varying foi-ee on said weighted lever,substantially as shown and described, and for the purpose set forth.

3. The combination of the turn-table 1), jonrnaled shaft j, weightedlever N, rigidly attaohed to said shaft, pulley R, rigidly andeceentrically mounted on said shaft and provided with means whereby itseocentrieity may be varied, the regulating-vane M, and the band or chainS,oonneoting said vane and pulley, substantially as shown and described,and for the purpose set forth.

4. The combination of the turn-table D,

oone T, formed integrally therewith, bushing Z, provided with an annularretaining-flange at its upper end and screw-threaded at its lower end,the nut a, securing the lower end of said bushing, and the oonneetingrodU, sliding,` within the same, substantially as shown and described, andfor thelpurposefsetforth. 5. The combination of the eonneeting-1od U,collar b, swivel n c, washer b', and nut a', all combined and operatingsubstantially as and for the purpose set forths In testimony whereof wehave signed this specification in the presence of two subscribingwitnesses.

HARRISON VOODMANSE. SAMUEL LEBKICHER.

fitnessesz VALLACE GREENE, J. A. CRANE.

